Little Registry Cleaner is an open source program designed for Microsoft's Windows Registry. Its purpose is to remove obsolete or unwanted items that build up in the registry over time in order to improve the stability & performance of your computer

RoboMirror's aim is to provide a very simple and user-centered GUI for Robocopy to allow for easy synchronization of two directory trees, e.g., to perform a robust incremental backup, both locally (e.g., to an external hard disk) and across the network.
Additionally, RoboMirror supports volume shadow copies. By using shadow copies, all files can be copied, including files locked by running processes (Outlook, SQL Server...).

Yet Another Process Monitor (YAPM) is a powerful process viewer for Windows that monitors the services & processes, their modules, threads, handles, windows, TCP/UDP connections... etc. running on local system or on any of the computers on your network.

Sudo for Windows (sudowin) allows authorized users to launch processes with elevated privileges using their own passphrase. Unlike the runas command, Sudo for Windows preserves the user's profile and ownership of created objects.

CloseTheDoor indentifies all the listening ports TCP/UDP over IPv4/v6 and the associated program files. This will help you to detect security holes and close backdoors when you want to prevent remote attacks.

File system/directory monitoring utilities with loggin and task processing support (can execute files or make a WCF service call). Multiple configuration options. Source code libraries can be used to create a custom file system monitor.